奇怪的逻辑表达式与正则表达式问题

[lgchao]

<script language="javascript">
var re=/^[\w]{2,10}$/g;
alert(re.test("test"));
alert(re.test("test") && re.test("test")）;
</script>

re.test("test")的结果是true;而re.test("test") && re.test("test")的结果则为false。难道true && true =false?

[lgchao]

应该是
alert(re.test("test") && re.test("test"));

[xizi2002]

我的结果为true true
<script language="javascript">
var re=/^[\w]{2,10}$/g;
alert(re.test("test"));
alert(re.test("test") && re.test("test"));
</script>

[lgchao]

难道我的系统有问题？
win2k server sp3, ie 6 sp1.

[blues-star]

没有问题，结果是true true

[saucer]

the result should be true, false (at least on IE6), because you are using /g option. The first re.test() matches the string, the second re.test() matches nothing, then the regular expression object resets, then it matches again, for example, try

<script language="javascript">
var re=/^\w{2,10}$/g;
alert(re.test("test"));
alert(re.test("test"));
alert(re.test("test"));
</script>


<script language="javascript">
var re=/^\w{2,10}$/g;
alert(re.exec("test"));
alert(re.exec("test"));
alert(re.exec("test"));
</script>

remove the /g, you will get what you expected

[lgchao]

I see, thank you very much.